Zelligspeak
Zelligspeak or 'ligspeak is a dialect of Soyspeak used by the Zaryans along with English for communication amongst themselves. The main features of the dialect are the addition of the letter Z (it being short for Zellig) replacing the first letter of some words (for example, Gem translates to Zem in Zelligspeak.) and the addition of Dutch words and expressions, like of zoiets (English: 'of sorts', 'or something like that').
Example: Zamn, that's goed ztuff of zoiets, therefore zem!